Can you keep going for 100 days straight?
The 100-Day Personal Chain is you, focused on a single habit of your choosing for 100 days. Each day you follow through adds a new link to your chain, and your only job is not to break it. After 100 days the habit stops being a struggle and becomes part of who you are.
The rule
Do your chosen habit every single day for 100 days and mark it in the app with one tap.
Miss a day?
100 days is a long road, and missing a day is completely normal. Your weekly skip credit protects that day automatically; if the chain still breaks, a repair credit lets you pick up where you left off. A broken day is never shamed in red — continuing is what matters.
How it works
- 1
Download and start
Download Daychain free, choose the habit you want to sustain for 100 days, and start your chain.
- 2
Check off daily
Every day you follow through, forge a new link with a single tap.
- 3
Carry the chain to 100
Complete your giant chain after 100 days and turn it into a lasting habit if you like.